1123613512 has 48 divisors (see below), whose sum is σ = 2454192000. Its totient is φ = 480870432.

The previous prime is 1123613483. The next prime is 1123613531. The reversal of 1123613512 is 2153163211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358689 + ... + 361807.

It is an arithmetic number, because the mean of its divisors is an integer number (51129000).

Almost surely, 2^1123613512 is an apocalyptic number.

It is an amenable number.

1123613512 is an abundant number, since it is smaller than the sum of its proper divisors (1330578488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123613512 is a wasteful number, since it uses less digits than its factorization.

1123613512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058 (or 4047 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 1123613512 is about 33520.3447476305. The cubic root of 1123613512 is about 1039.6144749547.

Adding to 1123613512 its reverse (2153163211), we get a palindrome (3276776723).

The spelling of 1123613512 in words is "one billion, one hundred twenty-three million, six hundred thirteen thousand, five hundred twelve".